net/ipv6/Kconfig

   1 #
   2 # IPv6 configuration
   3 #
   4
   5 #   IPv6 as module will cause a CRASH if you try to unload it
   6 config IPV6
   7         tristate "The IPv6 protocol"
   8         default m
   9         ---help---
  10           This is complemental support for the IP version 6.
  11           You will still be able to do traditional IPv4 networking as well.
  12
  13           For general information about IPv6, see
  14           <http://playground.sun.com/pub/ipng/html/ipng-main.html>.
  15           For Linux IPv6 development information, see <http://www.linux-ipv6.org>.
  16           For specific information about IPv6 under Linux, read the HOWTO at
  17           <http://www.bieringer.de/linux/IPv6/>.
  18
  19           To compile this protocol support as a module, choose M here: the
  20           module will be called ipv6.
  21
  22 config IPV6_PRIVACY
  23         bool "IPv6: Privacy Extensions support"
  24         depends on IPV6
  25         ---help---
  26           Privacy Extensions for Stateless Address Autoconfiguration in IPv6
  27           support.  With this option, additional periodically-alter
  28           pseudo-random global-scope unicast address(es) will assigned to
  29           your interface(s).
  30
  31           We use our standard pseudo random algorithm to generate randomized
  32           interface identifier, instead of one described in RFC 3041.
  33
  34           By default, kernel do not generate temporary addresses.
  35           To use temporary addresses, do
  36
  37                 echo 2 >/proc/sys/net/ipv6/conf/all/use_tempaddr
  38
  39           See <file:Documentation/networking/ip-sysctl.txt> for details.
  40
  41 config IPV6_ROUTER_PREF
  42         bool "IPv6: Router Preference (RFC 4191) support"
  43         depends on IPV6
  44         ---help---
  45           Router Preference is an optional extension to the Router
  46           Advertisement message to improve the ability of hosts
  47           to pick more appropriate router, especially when the hosts
  48           is placed in a multi-homed network.
  49
  50           If unsure, say N.
  51
  52 config IPV6_ROUTE_INFO
  53         bool "IPv6: Route Information (RFC 4191) support (EXPERIMENTAL)"
  54         depends on IPV6_ROUTER_PREF && EXPERIMENTAL
  55         ---help---
  56           This is experimental support of Route Information.
  57
  58           If unsure, say N.
  59
  60 config IPV6_OPTIMISTIC_DAD
  61         bool "IPv6: Enable RFC 4429 Optimistic DAD (EXPERIMENTAL)"
  62         depends on IPV6 && EXPERIMENTAL
  63         ---help---
  64           This is experimental support for optimistic Duplicate
  65           Address Detection.  It allows for autoconfigured addresses
  66           to be used more quickly.
  67
  68           If unsure, say N.
  69
  70 config INET6_AH
  71         tristate "IPv6: AH transformation"
  72         depends on IPV6
  73         select XFRM
  74         select CRYPTO
  75         select CRYPTO_HMAC
  76         select CRYPTO_MD5
  77         select CRYPTO_SHA1
  78         ---help---
  79           Support for IPsec AH.
  80
  81           If unsure, say Y.
  82
  83 config INET6_ESP
  84         tristate "IPv6: ESP transformation"
  85         depends on IPV6
  86         select XFRM
  87         select CRYPTO
  88         select CRYPTO_AEAD
  89         select CRYPTO_HMAC
  90         select CRYPTO_MD5
  91         select CRYPTO_CBC
  92         select CRYPTO_SHA1
  93         select CRYPTO_DES
  94         ---help---
  95           Support for IPsec ESP.
  96
  97           If unsure, say Y.
  98
  99 config INET6_IPCOMP
 100         tristate "IPv6: IPComp transformation"
 101         depends on IPV6
 102         select XFRM
 103         select INET6_XFRM_TUNNEL
 104         select CRYPTO
 105         select CRYPTO_DEFLATE
 106         ---help---
 107           Support for IP Payload Compression Protocol (IPComp) (RFC3173),
 108           typically needed for IPsec.
 109
 110           If unsure, say Y.
 111
 112 config IPV6_MIP6
 113         tristate "IPv6: Mobility (EXPERIMENTAL)"
 114         depends on IPV6 && EXPERIMENTAL
 115         select XFRM
 116         ---help---
 117           Support for IPv6 Mobility described in RFC 3775.
 118
 119           If unsure, say N.
 120
 121 config INET6_XFRM_TUNNEL
 122         tristate
 123         select INET6_TUNNEL
 124         default n
 125
 126 config INET6_TUNNEL
 127         tristate
 128         default n
 129
 130 config INET6_XFRM_MODE_TRANSPORT
 131         tristate "IPv6: IPsec transport mode"
 132         depends on IPV6
 133         default IPV6
 134         select XFRM
 135         ---help---
 136           Support for IPsec transport mode.
 137
 138           If unsure, say Y.
 139
 140 config INET6_XFRM_MODE_TUNNEL
 141         tristate "IPv6: IPsec tunnel mode"
 142         depends on IPV6
 143         default IPV6
 144         select XFRM
 145         ---help---
 146           Support for IPsec tunnel mode.
 147
 148           If unsure, say Y.
 149
 150 config INET6_XFRM_MODE_BEET
 151         tristate "IPv6: IPsec BEET mode"
 152         depends on IPV6
 153         default IPV6
 154         select XFRM
 155         ---help---
 156           Support for IPsec BEET mode.
 157
 158           If unsure, say Y.
 159
 160 config INET6_XFRM_MODE_ROUTEOPTIMIZATION
 161         tristate "IPv6: MIPv6 route optimization mode (EXPERIMENTAL)"
 162         depends on IPV6 && EXPERIMENTAL
 163         select XFRM
 164         ---help---
 165           Support for MIPv6 route optimization mode.
 166
 167 config IPV6_SIT
 168         tristate "IPv6: IPv6-in-IPv4 tunnel (SIT driver)"
 169         depends on IPV6
 170         select INET_TUNNEL
 171         default y
 172         ---help---
 173           Tunneling means encapsulating data of one protocol type within
 174           another protocol and sending it over a channel that understands the
 175           encapsulating protocol. This driver implements encapsulation of IPv6
 176           into IPv4 packets. This is useful if you want to connect two IPv6
 177           networks over an IPv4-only path.
 178
 179           Saying M here will produce a module called sit.ko. If unsure, say Y.
 180
 181 config IPV6_TUNNEL
 182         tristate "IPv6: IPv6-in-IPv6 tunnel"
 183         select INET6_TUNNEL
 184         depends on IPV6
 185         ---help---
 186           Support for IPv6-in-IPv6 tunnels described in RFC 2473.
 187
 188           If unsure, say N.
 189
 190 config IPV6_MULTIPLE_TABLES
 191         bool "IPv6: Multiple Routing Tables"
 192         depends on IPV6 && EXPERIMENTAL
 193         select FIB_RULES
 194         ---help---
 195           Support multiple routing tables.
 196
 197 config IPV6_SUBTREES
 198         bool "IPv6: source address based routing"
 199         depends on IPV6_MULTIPLE_TABLES
 200         ---help---
 201           Enable routing by source address or prefix.
 202
 203           The destination address is still the primary routing key, so mixing
 204           normal and source prefix specific routes in the same routing table
 205           may sometimes lead to unintended routing behavior.  This can be
 206           avoided by defining different routing tables for the normal and
 207           source prefix specific routes.
 208
 209           If unsure, say N.
 210